The Star Tribune reports (http://bit.ly/1474Gcy) the authority also says Minneapolis Venture can’t end an agreement to use part of the block as a public plaza before NFL games.

Jon Austin is a spokesman for Minneapolis Venture. He says the authority is making a nonexistent claim to the property and falsely demanding that Minneapolis Venture dedicate its land to the Vikings without compensation.

The authority made its allegations Friday in a counterclaim to a lawsuit filed this month by Minneapolis Venture.